Display screen or portion thereof with icon



FIG. 1 is a front view of a first embodiment of a display screen or portion thereof with icon, showing our new design;

FIG. 2 is a front view of a second embodiment thereof;

FIG. 3 is a front view of a third embodiment thereof; and,

FIG. 4 is a front view of a fourth embodiment thereof.

The outer perimeter illustrated by a pair of broken lines in FIGS. 1 to 4 represents a display screen or portion thereof and forms no part of the claimed design. The dot-dash broken lines in FIG. 1 represent a boundary of the claimed design and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 